chore: remove test files deleted in release

HelpTooltip.spec.ts and PaymentProviderDialog.spec.ts were removed
in release/custom-0.1.115; commit the deletion.

frontend/src/components/common/__tests__/HelpTooltip.spec.ts

@@ -1,80 +0,0 @@
-import { afterEach, describe, expect, it } from 'vitest'
-import { mount } from '@vue/test-utils'
-import { nextTick } from 'vue'
-import HelpTooltip from '@/components/common/HelpTooltip.vue'
-
-function getTooltipElement(): HTMLDivElement {
-  const tooltip = document.body.querySelector('[role="tooltip"]')
-  if (!(tooltip instanceof HTMLDivElement)) {
-    throw new Error('tooltip element not found')
-  }
-  return tooltip
-}
-
-describe('HelpTooltip', () => {
-  afterEach(() => {
-    document.body.innerHTML = ''
-  })
-
-  it('keeps the existing hover interaction by default', async () => {
-    const wrapper = mount(HelpTooltip, {
-      attachTo: document.body,
-      props: {
-        content: 'hover details',
-      },
-    })
-
-    const trigger = wrapper.get('.group')
-    const tooltip = getTooltipElement()
-
-    expect(tooltip.style.display).toBe('none')
-
-    await trigger.trigger('mouseenter')
-    await nextTick()
-    expect(tooltip.style.display).not.toBe('none')
-
-    await trigger.trigger('mouseleave')
-    await nextTick()
-    expect(tooltip.style.display).toBe('none')
-
-    wrapper.unmount()
-  })
-
-  it('supports click-to-toggle details and closes on outside click', async () => {
-    const wrapper = mount(HelpTooltip, {
-      attachTo: document.body,
-      props: {
-        content: 'click details',
-        trigger: 'click',
-      },
-    })
-
-    const trigger = wrapper.get('.group')
-    const tooltip = getTooltipElement()
-
-    expect(tooltip.style.display).toBe('none')
-
-    await trigger.trigger('click')
-    await nextTick()
-    expect(tooltip.style.display).not.toBe('none')
-    expect(tooltip.textContent).toContain('click details')
-
-    const closeButton = tooltip.querySelector('button[aria-label="Close"]')
-    if (!(closeButton instanceof HTMLButtonElement)) {
-      throw new Error('close button not found')
-    }
-    closeButton.click()
-    await nextTick()
-    expect(tooltip.style.display).toBe('none')
-
-    await trigger.trigger('click')
-    await nextTick()
-    expect(tooltip.style.display).not.toBe('none')
-
-    document.body.dispatchEvent(new MouseEvent('click', { bubbles: true }))
-    await nextTick()
-    expect(tooltip.style.display).toBe('none')
-
-    wrapper.unmount()
-  })
-})